I have a 23 month old who usually ends up in our bed most nights but for the past few nights when she comes in, she is trying to get back to sleep but will start crying and become agitated as if she is having a nightmare or something. This went on for about an hour last night until she eventually dropped off. I tried putting two drops of lavender oil on her pillow but it obviously didn't do the trick. Any suggestions or has any one else experienced this?